ext: lib: tinycbor: half/full-FP support changes

- Make half float encode/decode conditional
- src/cborpretty.c, src/cbortojson.c and src/cborvalidation.c
  conditionally include math.h and half float type support
- Conditionally include math.h in src/compilersupport_p.h to avoid
  newlib libc from getting compiled in
- Conditionally compile src/cborparser_dup_string.c if newlib libc is
  compiled in

Signed-off-by: Vipul Rahane <[email protected]>

Author: vrahane

ext/lib/encoding/tinycbor/src/cborpretty.c

@@ -33,9 +33,11 @@
 #include "cborinternal_p.h"
 #include "utf8_p.h"
 
-#include <float.h>
 #include <inttypes.h>
+#include <float.h>
+#ifndef CBOR_NO_FLOATING_POINT
 #include <math.h>
+#endif
 #include <string.h>
 
 /**
@@ -468,12 +470,14 @@ static CborError value_to_pretty(CborStreamFunction stream, void *out, CborValue
             cbor_value_get_float(it, &f);
             val = f;
             suffix = flags & CborPrettyNumericEncodingIndicators ? "_2" : "f";
+#ifndef CBOR_NO_HALF_FLOAT_TYPE
         } else if (false) {
             uint16_t f16;
     case CborHalfFloatType:
             cbor_value_get_half_float(it, &f16);
             val = decode_half(f16);
             suffix = flags & CborPrettyNumericEncodingIndicators ? "_1" : "f16";
+#endif
         } else {
             cbor_value_get_double(it, &val);
             suffix = "";

ext/lib/encoding/tinycbor/src/cbortojson.c

@@ -36,7 +36,9 @@
 
 #include <float.h>
 #include <inttypes.h>
+#ifndef CBOR_NO_FLOATING_POINT
 #include <math.h>
+#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -601,12 +603,14 @@ static CborError value_to_json(FILE *out, CborValue *it, int flags, CborType typ
             status->flags = TypeWasNotNative;
             cbor_value_get_float(it, &f);
             val = f;
+#ifndef CBOR_NO_HALF_FLOAT_TYPE
         } else if (false) {
             uint16_t f16;
     case CborHalfFloatType:
             status->flags = TypeWasNotNative;
             cbor_value_get_half_float(it, &f16);
             val = decode_half(f16);
+#endif
         } else {
             cbor_value_get_double(it, &val);
         }

ext/lib/encoding/tinycbor/src/cborvalidation.c

@@ -39,9 +39,9 @@
 
 #include <string.h>
 
+#include <float.h>
 #ifndef CBOR_NO_FLOATING_POINT
-#  include <float.h>
-#  include <math.h>
+#include <math.h>
 #endif
 
 

ext/lib/encoding/tinycbor/src/compilersupport_p.h

@@ -41,7 +41,9 @@ extern "C" {
 #  include <assert.h>
 #endif
 #include <float.h>
+#ifndef CBOR_NO_FLOATING_TYPE
 #include <math.h>
+#endif
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>
@@ -203,6 +205,7 @@ static inline bool add_check_overflow(size_t v1, size_t v2, size_t *r)
 #endif
 }
 
+#ifndef CBOR_NO_HALF_FLOAT_TYPE
 static inline unsigned short encode_half(double val)
 {
 #ifdef __F16C__
@@ -255,6 +258,8 @@ static inline double decode_half(unsigned short half)
 #endif
 }
 
+#endif
+
 #ifdef __cplusplus
 }
 #endif